Pass a Custom Property from vRA to vRO and then execute a powershell command using the Custom Property

I have a Custom Property defined in vRA called PatchPhase (Drop Down List).  I want to use the results of Patch Phase and use vRO to execute a PowerShell command that has an If\Then command.

If ($PatchPhase -eq "Phase_I") {Write "User Selected Patch Phase I")}

The Powershell script works by itself if I supply the variables

I can use vRO to Read the vRA properties and log them

What I cannot do is send the Custom Property to the Powershell command.

I have greater goals but would like to see the powershell work with the Custom Property to start.

Thanks for any help

Scott